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13879630 = 253144773
BaseRepresentation
bin110100111100…
…100101001110
3222010011021101
4310330211032
512023122010
61213253314
7225655252
oct64744516
928104241
1013879630
11791aa76
12479423a
132b4c6cb
141bb4262
15134273a
hexd3c94e

13879630 has 16 divisors (see below), whose sum is σ = 25789824. Its totient is φ = 5372640.

The previous prime is 13879627. The next prime is 13879631. The reversal of 13879630 is 3697831.

It is a self number, because there is not a number n which added to its sum of digits gives 13879630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13879631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22077 + ... + 22696.

It is an arithmetic number, because the mean of its divisors is an integer number (1611864).

Almost surely, 213879630 is an apocalyptic number.

13879630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13879630 is a deficient number, since it is larger than the sum of its proper divisors (11910194).

13879630 is a wasteful number, since it uses less digits than its factorization.

13879630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44811.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 13879630 is about 3725.5375451067. The cubic root of 13879630 is about 240.3215019967.

The spelling of 13879630 in words is "thirteen million, eight hundred seventy-nine thousand, six hundred thirty".

Divisors: 1 2 5 10 31 62 155 310 44773 89546 223865 447730 1387963 2775926 6939815 13879630